Dr. Marcelo Kremenchutzky, Director of the MS Clinic in London, Ontario, interviews researchers and clinicians at MSBoston 2014, the joint meeting of the Americas and European Committee for Treatment and Research in MS (ACTRIMS/ECTRIMS).

Part 1: Environmental factors and MS. In conversation with Dr. Deborah Mason, New Zealand Brain Research Institute, Christchurch; Dr. Tomas Kalincik, University of Melbourne, Melbourne; and Dr. Jorge Correale, Raúl Carrea Institute, Buenos Aires.

Next week: In part 2, Dr. Kremenchutzky talks with Dr. Mark Freedman, The Ottawa Hospital, Ottawa, and Dr. Pierre Duquette, Notre-Dame Hospital, Montreal, about brain atrophy and no evidence of disease activity (NEDA) as emerging measures of treatment efficacy.